Cushion|Natural|GIA

0.81ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 5436828209

Certificate GIA 5436828209

Diamond specifications and retailer prices

From $653 USD
HK$5,100 HKD
As of October 29, 2026
Save $970 USD (60%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,623 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.81ct natural cushion diamond

This 0.81ct natural cushion sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5436828209. Listed at 14 retailers as of October 29, 2026, with prices from $653 to $1,623, a $970 spread on the same certified stone. MOH London lists it at $1,623. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.81
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 5436828209
Dimensions5.21 × 4.77 × 3.56 mm
L/W Ratio1.09
Top View
5.21 mm4.77 mm0.81 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceStrong
CertificateGIA 5436828209
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 74.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,623 USD|Low: $653 USD|High: $1,633 USD|Avg: $1,127 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 9$653 USD
Retailer 11$891 USD
Retailer 3$895 USD
Retailer 10$914 USD
Retailer 4$993 USD
Retailer 2$1,027 USD
Retailer 7$1,029 USD
Retailer 5$1,117 USD
Retailer 6$1,241 USD
Retailer 8$1,300 USD
Retailer 12$1,325 USD
MOH London$1,623 USD

33 data points across 12 retailers

14 retailers$653 USD to $1,623 USD

A
Cheapest Retailer
-
$653 USD
HK$5,100 HKD
A
Retailer 2
-
$891 USD
View
A
Retailer 3
-
$895 USD
View
A
Retailer 4
-
$898 USD
View
Price last confirmed 50 days ago
A
Retailer 5
-
$914 USD
SGD 1,235 SGD
View
A
Retailer 6
-
$993 USD
View
A
Retailer 7
-
$1,027 USD
£808 GBP
View
A
Retailer 8
-
$1,029 USD
£811 GBP
View
A
Retailer 9
-
$1,117 USD
£880 GBP
View
B+
Retailer 10
-
$1,175 USD
A$1,808 AUD
View
A
Retailer 11
-
$1,241 USD
€1,182 EUR
View
A
Retailer 12
-
$1,300 USD
ZAR 21,002 ZAR
View
B+
Retailer 13
-
$1,325 USD
A$2,038 AUD
View
Price last confirmed 24 days ago
Most Expensive
B+
MOH London
E6EA676CB · Oct 29
$1,623 USD
£1,278 GBP
View
13 more retailers have this diamond
Prices start from $653 USDSave up to $970 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.81ct Cushion
$653 USD